Graphical user interface for a display screen



FIG. 1 is a front view of a graphical user interface for a display screen according to a first embodiment; and,

FIG. 2 is a front view of a second embodiment of the graphical user interface for a display screen.

The broken line showing of the display screen and various regions there within are not claimed. Any graphics depicted in broken line in the drawings views are not claimed. 

We claim the ornamental design for a graphical user interface for a display screen, as shown and described. 